11761541 has 16 divisors (see below), whose sum is σ = 13227648. Its totient is φ = 10368000.

The previous prime is 11761531. The next prime is 11761543. The reversal of 11761541 is 14516711.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11761541 - 2¹⁰ = 11760517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11761541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11761543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77816 + ... + 77966.

It is an arithmetic number, because the mean of its divisors is an integer number (826728).

Almost surely, 2^11761541 is an apocalyptic number.

11761541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11761541 is a deficient number, since it is larger than the sum of its proper divisors (1466107).

11761541 is a wasteful number, since it uses less digits than its factorization.

11761541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332.

The product of its digits is 840, while the sum is 26.

The square root of 11761541 is about 3429.5103148992. The cubic root of 11761541 is about 227.4162055043.

The spelling of 11761541 in words is "eleven million, seven hundred sixty-one thousand, five hundred forty-one".